Finding the Fourth Proportional to 122,179.69, 168,607.97 and 74,433.00
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Solution
The fourth proportional to 122,179.69, 168,607.97 and 74,433.00 is: 102,717.54
Step by Step Solution
- Step 1: Write the proportion equation
122,179.69 : 168,607.97 = 74,433.00 : x - Step 2: Convert to fraction form
122,179.69/168,607.97 = 74,433.00/x - Step 3: Cross multiply
122,179.69x = 168,607.97 × 74,433.00 - Step 4: Simplify right side
122,179.69x = 12,549,997,570.25 - Step 5: Solve for x
x = 12,549,997,570.25/122,179.69 - Step 6: Final answer
x = 102,717.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.